Improvement of Double Wire MIG Welding by Using Sine Wave Pulse Modulation Control Method

Cai, Hui; Xue, Jiaxiang; Heng, Gongchun

doi:10.1109/ihmsc.2016.271

Cited by 1 publication

(1 citation statement)

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“…The shape of the current wave influences heat and mass transfer behaviors. For instance, Chen et al [13] utilized a sine wave pulse to improve DW-GMAW, which has several advantages such as a wide range of weld parameters and superior robustness. Huang et al [14] noted that trapezoidal pulsed droplets detach and fall faster than exponential pulsed droplets.…”

Section: Matsumoto and Sasabementioning

confidence: 99%

Influence of high-frequency pulse on droplet transfer process and weld formation in double-wire median pulsed GMAW of aluminum alloy

Wu,

Lin,

Yang

et al. 2024

Preprint

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A double-wire median pulsed gas metal arc welding (GMAW) with a high-frequency pulse waveform was developed to study the influence of a high-frequency pulse on the droplet transfer process and weld formation in aluminum (Al) alloy. The droplet transfer process was recorded using a high-speed photography system. At the same time, the influence of a high-frequency pulse at peak stage was investigated. The experimental results demonstrated that stable droplet transfer and continuous welds are obtained by incorporating high-frequency pulses. The high-frequency pulses increase electromagnetic force and facilitate premature detachment of droplets. Especially, at a high frequency of 20 kHz, one drop per pulse (ODPP) droplet transfer mode is achieved, which is the ideal mode. In addition, high-frequency pulses increase axial arc pressure, strengthen convergent flow, and reduce the effect of divergent flow, resulting in increased weld penetration while decreasing weld width and porosity.

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Section: Matsumoto and Sasabementioning

confidence: 99%